dart-sdk/runtime/llvm_codegen
Martin Kustermann 4ea512b4c1 [llvm_codegen] Use exclusively SExpression support from VM and nothing else.
The LLVM code generator should only consume the serialized IR and not use any other VM functionality.
This CL adds a custom zone which can be used for the deserialized IR nodes and removes any
Dart_SetVMFlags/Dart_Initialize/ApiZone/... calls.

This works with the existing example:

    % ninja -C out/ReleaseX64 codegen
    % out/ReleaseX64/codegen runtime/llvm_codegen/test/codegen/Inputs/hello.sex
    ...
    define void @"hello.dart::main"() {

    B1:
      %0 = call i8* @llvm.stacksave()
      %1 = ptrtoint i8* %0 to i64
      %2 = load i64, i64 addrspace(256)* inttoptr (i64 72 to i64 addrspace(256)*)
      %3 = icmp ult i64 %1, %2
      br i1 %3, label %4, label %5
      ...
      ret void
    }
    ...
Change-Id: I1d07ba6bc122d100c73f97cfa961d36240489666
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/120792
Commit-Queue: Martin Kustermann <kustermann@google.com>
Auto-Submit: Martin Kustermann <kustermann@google.com>
Reviewed-by: Teagan Strickland <sstrickl@google.com>
2019-10-30 16:27:04 +00:00
..
bit [llvm_codegen] Contrived hello world 2019-10-10 20:57:02 +00:00
codegen [llvm_codegen] Use exclusively SExpression support from VM and nothing else. 2019-10-30 16:27:04 +00:00
test [llvm_codegen] Contrived hello world 2019-10-10 20:57:02 +00:00